639 Player Plus
Retune 440 Hz to 639 Hz
Price history
About
This music player automatically retunes your entire library to the 639 Hz frequency, believed to foster harmony and connection. It saves time and storage by avoiding manual file conversions and offers features like custom playlists and a sleep timer.
What's New in 639 Player Plus
1.6.0
September 26, 2026
Bug fix
Subscriptions & In-App Purchases
$19.99
Unlimited 639 Hz retuning forever.
Unlock App & Unlimited 639 Hz Listening
Developer apps
FAQ
What is 639 Player Plus?
639 Player Plus is a music player that automatically retunes your music library to the 639 Hz frequency. This frequency is associated with fostering love, harmony, and deeper relationships.
How does 639 Player Plus retune music?
The app instantly retunes your existing music files to 639 Hz without requiring manual file conversions. This process is designed to be seamless and save you time and device storage.
Can I create playlists with 639 Player Plus?
Yes, 639 Player Plus allows you to easily create and manage personalized playlists. You can add songs in bulk and organize your favorite tracks efficiently.
Does 639 Player Plus have a sleep timer?
Yes, the app includes a sleep timer feature. You can set a countdown, and the music will stop automatically when the timer ends, allowing you to drift off to sleep.
Is 639 Player Plus available on other platforms besides iOS?
Currently, 639 Player Plus supports iOS devices, including iPhone and iPad, and is also compatible with CarPlay for in-car listening experiences.
Can I unlock more Solfeggio frequencies in 639 Player Plus?
Yes, you can unlock additional Solfeggio frequencies through an in-app purchase. This allows you to explore a wider range of frequencies beyond 639 Hz for unique benefits.
What is the price of 639 Player Plus?
639 Player Plus is available for a one-time purchase of $19.99. There are also optional in-app purchases to unlock additional features.
How often is 639 Player Plus updated?
The app was last updated on July 6, 2025, with version 1.0.4. This indicates a recent update, suggesting ongoing development and support.
